A [LDAP Extended Request|Supported Extension|SupportedExtension]: Get the DN of the DirXML-DriverSet object associated with the server. The return from LdapContext.extendedOperation will be an instance of the response class. * Rights needed: None * OID: 2.16.840.1.113719.1.14.100.1 * Request data: None * If there is no driver set associated with the server then the operation will result in the LDAP error NO_SUCH_ATTRIBUTE.